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Reaction wheel controller

vatsalbansal123·reaction-wheel-controller-pcb

Reaction wheel controller PCB layout, top view — open source STM32 board by vatsalbansal123
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About the Reaction wheel controller PCB

Reaction wheel controller is an open source STM32 PCB design by vatsalbansal123, published on GitHub. It is a 2-layer board measuring 48.6 × 49.6 mm, with 45 components from 29 distinct parts.

Its main chip is the STM32G431CBTx, from the STM32 family. Other key parts include the USBLC6-2SC6, DRV8311H, SN65HVD231 and TPS562200. By type, the board carries 19 capacitors, 7 resistors, 6 connectors, 5 ICs, 3 diodes and 2 inductors.

It belongs with the robotics & motion designs in this gallery.

From the project

Open-source FOC motor controller PCB for a reaction wheel — STM32G431 + DRV8311H driving a BLDC motor, with CAN bus interface. Designed in KiCad.

A compact, single-board controller for a brushless DC (BLDC) reaction wheel.

- J4 — USB-C (USB 2.0 + power) - MT1 — 2-pin screw terminal (motor phases / power) - J1 — 1x4 header, CAN (CANH / CANL) - J5 — 1x4 header, I²C (SDA / SCL) - J2 — 1x4 header, SWD debug (CLK / IO) - J6 — 1x6 header, SPI (CS / SCK / MISO / MOSI) - J3 — 1x3 pin header - SW1 — SPST tactile button

Reaction wheel controller, from the project README
From the project README

Main components on the Reaction wheel controller

USBLC6-2SC6STM32G431CBTxDRV8311HSN65HVD231TPS562200

Reaction wheel controller bill of materials (BOM)

45 components, 29 distinct parts.

QtyPartRefs
1
USBLC6-2SC6
U1
1
STM32G431CBTx
U2
1
DRV8311H
U4
1
SN65HVD231
U5
1
TPS562200
U6
1
16MHz
Y1
3
Conn_01x04_Pin
J1, J2, J5
1
Conn_01x03_Pin
J3
1
USB_C_Receptacle_USB2.0_16P
J4
1
Conn_01x06_Pin
J6
1
Screw_Terminal
MT1
1
SW_SPST
SW1
2
SS34
D1, D2
1
NUP2105L
D3
1
120R
FB1
1
2.2u
L1
2
10u
C1, C15
1
10n
C2
2
10p
C3, C9
5
100n
C4, C7, C8, C11, C18
Show 9 more
QtyPartRefs
5
0.1u
C5, C13, C14, C17, C19
2
1u
C6, C10
1
4.7u
C16
1
22u
C20
2
5k1
R1, R2
1
10K
R3
2
100k
R4, R5
1
30.1K
R6
1
47k
R7

Reaction wheel controller design files

The KiCad project lives in the vatsalbansal123/reaction-wheel-controller-pcb repository on GitHub; these links point at the commit this page was built from.

Reaction wheel controller: common questions

What microcontroller does the Reaction wheel controller use?

The Reaction wheel controller is built around the STM32G431CBTx, from the STM32 family.

How big is the Reaction wheel controller PCB?

The Reaction wheel controller measures 48.6 × 49.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Reaction wheel controller?

45 components, from 29 distinct parts. The full bill of materials is listed on this page.

Where can I download the Reaction wheel controller design files?

From the vatsalbansal123/reaction-wheel-controller-pcb repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Reaction wheel controller design in my own project?

The repository has no license, so all rights stay with vatsalbansal123. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Reaction wheel controller without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.

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